CN104756206A - Coil arrangement for generating a rotating electromagnetic field and positioning system for determining a position of an identification transmitter - Google Patents
Coil arrangement for generating a rotating electromagnetic field and positioning system for determining a position of an identification transmitter Download PDFInfo
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- CN104756206A CN104756206A CN201380057633.XA CN201380057633A CN104756206A CN 104756206 A CN104756206 A CN 104756206A CN 201380057633 A CN201380057633 A CN 201380057633A CN 104756206 A CN104756206 A CN 104756206A
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0023—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration
- G01R33/0041—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration using feed-back or modulation techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/70—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using electromagnetic waves other than radio waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/767—Responders; Transponders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0205—Details
- G01S5/0226—Transmitters
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/02—Fixed inductances of the signal type without magnetic core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
- H01Q7/08—Ferrite rod or like elongated core
Abstract
Various embodiments relate to a coil arrangement (200) for generating a rotating electromagnetic field, comprising at least three coils (210a, 210b, 210c), each having at least one associated coil winding (212a-212f). The coil arrangement further comprises a ferromagnetic coil yoke (211) which establishes a magnetic coupling between the at least three coils.
Description
Technical field
Different forms of implementation relates to a kind of coil block of the electromagnetic field for generation of rotating and the navigation system for the position of determining identification sensor (Identifikationsgeber).Such navigation system can comprise according to coil block of the present invention.
Background technology
The technology of position is such as located by identification sensor, is that is determined in known permission.The example of identification sensor is such as the key for motor vehicle: known permission determines that in the surrounding environment of motor vehicle the position of key is to realize the technology close to control (Zugangskontrolle) to motor vehicle thus.At this, traditional technology is typically based on the field intensity measuring the electromagnetic field sent by central transmitter.Owing to reducing along with the distance with reflector increases field intensity (weakening or decaying of field intensity), can by the position released by the receiver antenna measurement field intensity in key relative to reflector.
But, such as, due to the restricted precision when measuring field intensity, the restricted precision that the position that such technology may have identification sensor is determined.In known systems, the precision that position is determined is such as the about 2m of 20cm-.In addition, systemic distortion may be there is: especially such as due to the reduction of the field intensity of magnetic bodies (such as automobile body etc.) possibility interfere with electromagnetic field, make the position of identification sensor determine to be attended by certain Systematic Errors.The single manual measurement of the decay that such situation may need in a motor vehicle and perform field intensity around motor vehicle is determined with correction position.Such manual measurement may expend time in and may produce corresponding cost very much.Correction itself also may cause error source.In addition, can not or only restrictively can also in motor vehicle executing location determine.This may be this situation, because can due to the decay of the most different structures interference field strength strongly in the inner space of motor vehicle.
The unfavorable effect of prior art has been set forth above about location determination techniques itself.But, in the system configuration of corresponding device, also may there is unfavorable effect, as explained closer below.Thus, the known navigation system determined for position typically has central controller in advance, and it is connected with each reflector sending electromagnetic field by means of supply line.But these supply lines reserved to multiple reflector, typically three to five reflectors may require structure space in a motor vehicle and the ground and expensively with the line layout of such as two cores or four-core of needing to expend time in.In addition, such system usually only has less modulation degree, because with easily can not running also reliable in function with the system of the more or less reflector of quantity, therefore or only restrictively can not can provide different outfit schemes.In addition, corresponding system may relatively easily be disturbed, because the inefficacy of central controller or interference usually can cause the complete failure of system.
Summary of the invention
For the above reasons, there is the demand of the technology of the improvement to the position for determining receiver.Especially there is the demand for navigation system, its to make within motor vehicle and outside accurate especially position be determined to become may and have with the simple and less vulnerability to jamming of the system of systems of cost advantages simultaneously.
This object is realized by the feature described in independent claims.Dependent claims limits form of implementation.
According to an aspect, the present invention relates to a kind of coil block for generation of rotary electromagnetic field, wherein, this coil block comprises at least three coils, and it has the coil windings belonging at least one respectively.This coil block comprises ferromagnetic coil yoke in addition, and this coil yoke sets up the magnetic connection of at least three coils.
This at least one coil windings self can comprise multiple volume circles of line or the conductor circuit that can conduct electricity.Coil can comprise one or more coil windings, in other words, and its electrical contact or intercepting separably in multiple coil windings of coil.
Magnetic connection is characterised in that certain magnetic flux, and it such as has certain size.Magnetic flux such as produces by the continuous print connection of coil yoke.Coil block especially can be set up to magnetic flux and have certain value at the center of coil block, such as, be approximately or just 0.Such as, coil yoke can be continuous print, does not namely have or only with less and/or very little or short interruption or air gap.It can be made up of ferromagnetic material, and the oxide of such as iron, chromium, nickel, these materials is as ferrite, the alloy etc. that is made up of iron, chromium, nickel.Magnetic connection can represent ferromagnetic reciprocation, and it is configured on the gamut of coil yoke.
Likely these at least three coils to be arranged in a coil plane and contiguous coil is arranged with the angle of about 120 ° within coil plane.Such as, contiguous coil can be arranged with the angle of 120 ° ± 10 °, preferably ± 5 °, particularly preferably ± 0.5 °.The fairly simple manipulation (such as with the alternating voltage of phase shift 120 °) of coil so may be utilized to produce rotating electromagnetic (em) field.But it is also possible that usually contiguous coil mutually surrounds other angle in coil plane.If coil is arranged within this coil plane, this might mean that, coil (or its central axis) does not surround angle or only surrounds very little angle with it with the vector launching coil plane, such as ± 10 °, preferably ± 5 °, particularly preferably ± 1 °.
When the angle of contiguous coil within coil plane is different, different angles may be correspondingly mated in the phase shift being used for the alternating voltage manipulating different coil, thus produce rotary electromagnetic field, it has constant angular speed.
Certainly also such as may use four or six or more coil, it arranges with the angle of regulation relative to contiguous coil in coil plane.Pure exemplarily and without limitation, four (six) coils can be arranged with the angle of 90 ° (60 °).The structure of corresponding symmetry in addition is also possible, and coil contiguous wherein always has identical angle each other.
The foregoing describe such form of implementation, all coils is in a coil plane wherein.Such coil plane can determine the Plane of rotation rotating em field.But such form of implementation is also possible, single or multiple coil is in outside the coil plane that limited by least two coils wherein.In other words, single or multiple coil can relative to coil plane tipping.Also Plane of rotation may be limited by coil plane in such a case.
Such as it is possible that the tertiary coil in these at least three coils surrounds angle with the coil plane launched by the first and second coils in these at least three coils.Such as, the angle that tertiary coil and coil plane surround can in the scope of 1 °-45 °, preferably in the scope of 20 °-30 °.When single coil is relative to coil plane tipping, the size that coil block is less within coil plane can be realized.This has advantage in such a case, that is, coil block should be positioned in such region of such as motor vehicle, that is, provide limited space in that region, such as, in B or the C post of motor vehicle.But, be understood that, even if one or more coil is relative to coil plane tipping, the one-component of the electromagnetic field produced by these coils is still arranged in coil plane and therefore possible that, launches and all coils is arranged in the similar rotary electromagnetic field of the situation of a coil plane.Especially, so send rotary electromagnetic field, that is, it has angular speed constant within Plane of rotation.It is possible that rotate the correlation that em field has field intensity and angle.
Likely ferromagnetic coil yoke is arranged within these at least three coils continuously, and coil block comprises at least three capacitors (it is connected with in these at least three coils respectively) in addition and with the electric contact of outside and the housing of machinery mount.In other words, each coil can connect (serial connection) with capacitor.So in ways known to those skilled in the art, the value of the inductance of coil and the electric capacity of capacitor can determine the frequency of the em field of corresponding generation.This frequency can, at 100kHz to 10MHz, preferably in the scope of 1MHz, be such as particularly advantageously 125kHz or 1MHz.
Housing can have the support for fixing these at least three coils and coil yoke.All parts of housing receivable coil block and protection avoids external action, dust and deposit, moisture and vibration.Housing can be made up of such material, that is, it only causes relatively little the weakening of electromagnetic field.Preferably, housing can be made up of plastic material.Electrical contact can be set up with the electrical connection of circuit board and make the manipulation of coil block and supply become possibility thus.
It is possible that ferromagnetic coil yoke has the arm radially extended from center, and each in the coil windings of these at least three coils has the volume circle around in arm of some respectively.
Arm such as can be cylindricality and such as can have circular cross section.Other shape of cross section (rectangle, foursquare, oval etc.) be also possible.Have three above with in the form of implementation of the coil of 120 °, the orientation of arm can be as follows: 0 °, 120 °, 240 ° (being respectively the azimuth relative to center).The length of arm such as can be several centimetres, preferably in the scope of 1-20cm, especially preferably in the scope of 2-6cm.Arm can at center convergence.Can be called as " star " by the form of the coil block illustrated by such structure.
In such structure, coil block can have the extension perpendicular to coil plane, because coil windings extends around coil yoke with certain diameter.But also possible that, manufacture coil block in an integrated fashion, such as, by conductor circuit on circuit boards.Integrated form of implementation so also can be called as structure that is horizontal or plane.
It is possible that each in coil windings is designed to the conductor circuit of the plane of formation circle on circuit boards, and circuit board has the recess for ferromagnetic coil yoke, and ferromagnetic coil yoke is arranged on circuit board and under.It is possible that circuit board is parallel to or is roughly parallel to coil plane in such form of implementation.Conductor circuit can have the extension perpendicular to coil plane very little compared with above form of implementation, such as tens microns or be less than 1mm.This such as has at structure space and has advantage in limited time.Ferromagnetic coil yoke fixes by recess.
Likely be there are two or more respectively respectively with the coil windings of the volume circle of some in each coil, it can jointly or discretely be manipulated, and coil block comprises at least three other capacitors in addition, it is in parallel with in two or more coil windings of each coil respectively.The coil windings of reserved multiple electrical contact separably in a coil can be realized like this and therefore reserve different inductance.Therefore, the multiple oscillation circuits with different resonance frequency can be provided.Therefore, coil block can send the em field with different frequency.In addition, in parallel with coil windings respectively by other capacitor, can obtain with similar especially in order to the operation of the coil block of less power consumption of connecting with capacitor.This can be especially favourable in the application that only can provide limited energy reserve.
Usually likely at least one coil windings of these at least three coils has identical geometry and/or volume circle respectively.In other words, these at least three coils can be same form and identical type.Therefore may produce by means of simple especially energising the em field rotated, it advantageously has constant angular velocity of rotation.
Above Primary Reference has the coil block of at least three coils.Multiple such coil block may be run in combination as the navigation system being used for receiver.
According to another aspect, the present invention relates to a kind of navigation system of position of the identification sensor for determining motor vehicle, wherein, this navigation system comprises at least two coils, the different location place and being set up to that these two coil positions are fixedly fitted to motor vehicle runs respectively as the reflector at least two electromagnetic fields, wherein, each at least two coils is linked with supply line.In addition, navigation system comprises the identification sensor with receiving coil, wherein, identification sensor is set up to and runs as the receiver at least two electromagnetic fields, and navigation system comprises controller, this controller is set up to and manipulates at least two coils to produce corresponding electromagnetic field by bus system with the order of regulation by computing unit.
Such navigation system can have the effect of simple especially system configuration; In any case such as it is possible that in any case the computing unit of at least two coils is connected in the supply line that exists in a motor vehicle or in the bus system existed.The manipulation of coil realizes by multiple computing unit, and it can be arranged near coil and can be linked to bus system and supply line and corresponding coil.Coil block can comprise alternate voltage source, and it is connected with supply line, such as 12V direct current network.Especially, do not need to arrange the supply line for the coil of central controller.Electromagnetic field according to the navigation system of the aspect discussed at present can be traditional non-rotating field.
Usually, be known according to the operation of the navigation system of the aspect of current discussion to those skilled in the art, details need not be set forth again at this.It should be understood that relative to above navigation system, according to the present invention, the effect that can realize simple especially manipulation by the direct current network of reserved bus system independently and supply line, such as motor vehicle and control.
According to another aspect, the present invention relates to a kind of navigation system of position of the identification sensor for determining motor vehicle, wherein, this navigation system comprises at least two coil blocks according to a further aspect in the invention, wherein, these at least two coil block positions are fixedly fitted to the different location place of motor vehicle and the reflector be set up to respectively as the electromagnetic field for rotating runs.In addition, this navigation system comprises the identification sensor with receiving coil, and wherein, identification sensor is set up to, for the receiver for these at least two rotary electromagnetic fields runs.
Such as, navigation system can be set up to determine identification sensor the space outerpace of motor vehicle, that is environment or around in position.Alternatively or neighbouringly, navigation system can be set up to the position determined in the inner space of motor vehicle.
Namely such as the frequency of the frequency of receiving coil with these at least two coil blocks can be coordinated mutually.Three or four coil blocks preferably such as can be set.These coil blocks can assemble mutually at intervals.
By using at least two coil blocks or at least two rotary electromagnetic fields, determining especially accurately of the position of identification sensor can be realized.Such as can by determining to realize accurately determining the position of identification sensor in the Plane of rotation of electromagnetic field relative to the triangulation of reference mutually with based on determined at least two differences of these at least two rotary electromagnetic fields.
In addition, navigation system can comprise controller, and it is set up to specify to manipulate these at least two coil blocks in turn to send the corresponding electromagnetic field rotated.
Controller can be such as the central computation unit of motor vehicle.Such as, controller can be used as in central computation unit that hardware or software or its is combined in motor vehicle and implements.
Likely controller is linked by bus system and this at least two coil blocks and each in these at least two coil blocks is linked with supply line and each in these at least two coil blocks is set up to and receives the control signal of controller by bus system and produce rotary electromagnetic field according to control signal, wherein, the energy for sending rotary electromagnetic field is obtained by supply line.
Such as, coil block can comprise computing unit as the interface by bus system and controller communication.This computing unit can be set up to and receive and processing control signals.
Supply line can be such as the In-vehicle networking of motor vehicle.Supply line such as can have and rotates the required different current/voltage ratio in em field from the coil for manipulating coil block to produce.Such as, supply line can provide 12V direct voltage.Therefore, coil block can have the switching circuit for current/voltage conversion, i.e. alternate voltage source.So such as can realize rotating em field with energy supply coil assembly to produce dispersedly.As the system configuration that effect can be simplified, reserved the endeavoured supply line from controller to each coil block especially can be cancelled.These coil blocks can be used as and from vehicle electronic circuit, optionally extract energy to produce rotation em field to the reaction of the instruction of controller by bus system.Typically, the supply line of In-vehicle networking is present in the zones of different of motor vehicle anyway, thus does not need larger changing of structure.
It is made to send corresponding rotary electromagnetic field in turn it is possible that controller is set up to these at least two coil blocks to manipulate into.
Manipulate in turn and also can be called as time diversity; In other words, successively electromagnetic field can launched not in the same time, such as.This such as realizes by the control signal that correspondingly designs: the interface of coil block can launch corresponding em field according to control signal in the mode of time warping to control signal decoding.It is then possible that launch unique control signal only by bus system, it orders multiple coil block not launching em field in the same time.This description below: be feasible by different form of implementation in controller control coil assembly; The present invention is not restrictive especially thus.Such as likely, controller sends unique control command by bus system, time obtained in coil block, this control command excites timer, and after timing terminates, corresponding coil block sends rotary electromagnetic field on the possible same time period obtained in control device.The relevant parameter of timer is for being different each coil block and specified by controller.Such as especially can realize thus, at least two coil blocks send the order change of rotary electromagnetic field, such as, for different motor vehicles or for the function of single motor vehicle as the time.It is for instance also possible that the order that these at least two coil blocks send rotary electromagnetic field can be random.Can improve in such form of implementation relative to the fail safe in third party's malice intrusion navigation system.
Navigation system can comprise at least one alternate voltage source in addition, and it is connected with at least two coil blocks with a supply line and is set up to, and utilizes alternating voltage to supply difference at least two coils of each coil block to produce corresponding rotary electromagnetic field.The alternating voltage of at least two coils can have the phase relation of regulation each other, and wherein, the angle mutually can surrounded according to coil contiguous within coil plane specifies the phase relation of adjacent coils.
Such as at least one alternate voltage source can be suitable current source, and it causes certain electric current of the coil by coil block.Such as it is possible that there is the connection with the direct current network of motor vehicle.
Such as, during certain angle between the coil of the vicinity of coil block, the phase relation of alternating voltage equals this certain angle.Therefore, surround each other respectively in the form of implementation of angle of 120 ° at three coils of coil block, the phase relation of the alternating voltage of supply three coils is also 120 °.
Such as likely, first at least two coil blocks is arranged in the B columnar region in the left side of motor vehicle, second at least two coil blocks is arranged in the B columnar region on the right side of motor vehicle, and at least two coil blocks the 3rd is arranged in the region of the afterbody of motor vehicle.
In such structure, such as, can realize the position accurately determining identification sensor especially.Be such situation, because for the rotation em field produced by three reflectors, values different especially can be had relative to the difference of the fixed phase at the diverse location place in the environment of motor vehicle and in inside.Therefore, such as in the triangulation based on difference, very little error can be obtained thus.In other words, for the situation of the large distance/angle between coil block, the triangulation of difference is accurate especially.
Especially it is possible that at least two coil blocks are arranged so that the Plane of rotation of at least two rotary electromagnetic fields is substantially parallel to each other.Alternatively or additionally it is possible that at least two coil blocks are arranged in the scope of 70cm to 130cm on ground.
Such as Plane of rotation launches (coil plane) by least two coils of coil block.Therefore can be realized by the corresponding geometrical arrangements scheme of the different coils of at least two coil blocks, Plane of rotation is substantially parallel to each other.Almost parallelly such as to may imply that: ± 20 °, preferably ± 5 °, especially preferably ± 1 °.
But usually also possible that, the Plane of rotation of different coil block surrounds little or larger angle each other.If this angle is such as prescribed and structurally known, then this can consider when determining the position of identification sensor and be calculated if possible.Triangulation also can consider such situation.
Typically it is possible that precision is determined in the especially high position for the position acquisition identification sensor within the Plane of rotation of rotary electromagnetic field.Therefore it is desirable that, three coil blocks and thus Plane of rotation be arranged in the respective regions on ground.Especially thus it is possible that Plane of rotation is parallel to or is roughly parallel to ground.During owing to being such as arranged in suitcase or the glove box of motor vehicle when identification sensor, typically the identification sensor of motor vehicle is arranged in the such region on ground, thus can simply and accurately determine position.
According to another aspect, the present invention relates to a kind of motor vehicle with the navigation system of the position of identification sensor for determining motor vehicle, wherein, the navigation system of motor vehicle comprises at least two coil blocks according to a further aspect in the invention, wherein, at least two coil block positions are fixedly fitted to the different location place of motor vehicle and are set up to, and run respectively as the reflector for rotary electromagnetic field.The navigation system of motor vehicle comprises the identification sensor with receiving coil in addition, and wherein, identification sensor is set up to, and runs as the receiver at least two rotary electromagnetic fields.
According on the other hand, the present invention relates to a kind of method of the position for determining receiver.The method comprises and sends at least one electromagnetic field respectively by reflector, and wherein, the amplitude of this at least one electromagnetic field rotates relative to corresponding reflector respectively as the function of time.In addition, the method relates to and measures this at least one electromagnetic field by receiver and based on this measured at least one electromagnetic field each detection difference (Differenzphase) to this at least one electromagnetic field in the position of receiver.In addition, the method comprises the position that at least one detects based on this difference determines receiver.
Electromagnetic field can be with certain frequency with the alternating electromagnetic field of time correlation.Frequency such as can be in 100kHz to 10MHz, preferably until be in the scope of 1MHz and particularly advantageously 125kHz or 1MHz.Reflector such as can comprise the electromagnetic viscosimeter loop with inductance and capacitor; The known realization of those skilled in the art is for generation of the technology of the corresponding design of the reflector of these frequencies thus.
Electromagnetism (em) field such as can be called as rotation em field, because amplitude can rotate around reflector in Plane of rotation according to the time, namely can perform rotary motion with angular speed.In other words, the maximum of point, the i.e. such as field intensity of em field of same phase or minimum value can according to the time respectively under different directions or angle relative to transmitter arrangement.Figuratively, such as field intensity maximum (at this reflector) as the light beam of beacon is movable.Especially, the speed of rotary motion can equal the frequency of em field self.But also speed may present other value.The rotary motion of em field can be characterized by certain phase (phase place) of motion (as the process circulated typically); One turn over can corresponding to the phase of the accumulation of 360 ° or 2 π.Such as can move with constant angular speed in the em field rotated.Usually, angular speed is also possible with the correlation of certain regulation of phase (angle).Such as it is possible that Plane of rotation and plane-parallel ground or be such as less than substantially in parallel, that is ± 20 °, be preferably less than ± 10 °, be particularly preferably less than ± 2 ° of orientations, namely such as almost parallel with ground.The em field rotated can utilize coil block according to a further aspect in the invention to produce.
Pass through the rotary motion of sent em field, the field intensity of em field or the corresponding time relationship of phase place can be obtained at the place place of receiver.The field intensity of em field measured by receiver with especially can being set up to time phase ground and/or frequency discrimination, and to this, receiver such as can be set up to the amplitude of the magnetic field component measuring em field, and it again can be proportional with the field intensity of em field.Difference so may be determined from the measurement of field intensity; Such as relative to reference phase, it especially can by the determining in the em field of reflector when launching mutually.
To this, as illustrative especially but not as the example restrictively set forth, following situation should be described: reflector sends em field when 0 ° of phase place, it is made to point to east (limiting arbitrarily).But receiver is positioned at the south of reflector and therefore (goes back) not " seeing " maximum.When the 90 ° of phase places in reflector place, the maximum of amplitude just arrives receiver (if the em field rotated turns clockwise).Therefore, can be used in this example, with-90 °, difference is described.Corresponding example also can illustrate for the value being different from the maximum of amplitude of em field certainly.Such as, this can relate to certain activation levels of amplitude, its in view of rising or trailing edge define.
Certainly usually equally may relative to another with reference to determining difference mutually, such as relative to the triggering signal of system clock (System-Takt) or outside, such as, relative to by the user in environmental area etc. around or the object manipulation door handle that picks out.The maximum of amplitude or field intensity such as also may be replaced to observe minimum value or hand over zero (Nulldurchgang), or the important point of the time-varying process of distinctive observable quantity (Observable) or arbitrary phase.The amplitude of magnetic component of usual observable electromagnetic field or the amplitude of electric component; Both can be important for the field intensity of em field.But reflector and/or receiver have at least one coil, it is set up to and inductively interacts with the magnetic component of electromagnetic field.
Can by differing the position determining receiver.At this, term " position " can represent the most different precision that position is determined: in a simple especially form of implementation, term " position " only can represent the angle (in the examples described above-90 °) of receiver relative to reflector.But also possible that, additional or alternative in the angle relative to reflector, term " position " also represents the distance relative to reflector, such as, in the Plane of rotation of em field.In addition it is possible that term " position " additionally or alternatively represent such as relative to this Plane of rotation of em field, that is perpendicular to the distance of Plane of rotation; In such a case, especially it is possible that term " position " represents that the absolute position of receiver in reference frame is determined; Reference frame can be selected arbitrarily usually, however can be worth pursue be about this at least one reflector definition reference frame (reflector such as can be arranged in the initial point of reference frame).In other words, term " is determined position " and represents to determine three-dimensional single coordinate, the distance of such as spheric coordinate system and/or azimuth and/or polar angle, but or determines three-dimensional all coordinates.
Such as, what can be worth pursuit in different forms of implementation is determining especially accurately of the position performing receiver.The determining especially accurately especially can comprise of the position of receiver determines three-dimensional multiple or all coordinates.Namely especially in such a case can by multiple reflector, such as two or three reflectors send more than one, such as two or three electromagnetic fields.In other words, can be each field and one reflector is provided.Then can determining multiple difference, such as, respectively relative to the em field sent by multiple reflector, and accurately determining the position of receiver especially when considering multiple difference.
Multiple em field may be sent with different frequencies, so-called frequency diversity in different forms of implementation simultaneously.It is then possible that receiver design becomes to measure multiple em fields at different frequencies.Frequency diversity can have the effect determining position especially fast.Rotate em field to send two or more, such as, can use navigation system according to a further aspect in the invention.
Carry out in turn it is possible that send for two or more electromagnetic fields and these two or more electromagnetic field measurementses are carried out in turn.The determination of the position of receiver the determination of the position of receiver can comprise and determines such direction and distance based on carry out the triangulation of these at least two differences, and receiver is arranged in the Plane of rotation of the electromagnetic field of time correlation relative at least one in reflector with this direction and distance.Such situation also can be called as time diversity, because in turn send multiple em field at different time in other words in turn, namely.So also can by multiple measured known multiple difference in em field, and triangulation can realize position, especially also with the determining especially accurately of the distance of one or more reflector.Triangulation may imply that usually determines position based on the known layout of multiple reflector and measured difference.Technology for triangulation is known in principle for those skilled in the art, thus need not set forth further details here.
Be possible especially in this reference frame (going back the position of known emitter wherein) and determine position.Namely especially it is possible that reflector is such as fixedly arranged about reference frame position and receiver is movably arranged.Such as direction can illustrate with spherical coordinate as azimuth in reference frame, the initial point of a formation reference frame in reflector.Other definition is also possible.
Such technology (its comprise send two or more em fields) can allow accurately to determine especially the position of receiver, or it allows two or three coordinates determining receiver position.Determined position such as can illustrate user on a display screen.This also can realize finding receiver simply.Especially by use the technology of triangulation realize via the effect determined of position.Be understood that, difference is detected for rotation em field more accurately to carry out, that is there is smaller error, especially compared with conventional art (its measurement based on the field intensity of em field and wherein position determine the attenuation rate of the amplitude based on em field).Especially can not need the attenuation rate of the amplitude considering em field completely in different forms of implementation, in different forms of implementation, therefore can save the attenuation rate of the field intensity starting illustrated correcting measuring detection em field yet.This can reduce the cost of the method for performing the position for determining receiver.It is to be understood however that, alternatively or additionally also may consider the attenuation rate of the field intensity of em field.This can make extra high precision in position is determined become possibility.Especially, these two or more em fields can be sent into it is all rotated in a Plane of rotation.
In addition, the method can comprise the field intensity detecting this at least one electromagnetic field based at least one measured electromagnetic field in the position of receiver, wherein, the determination of the position of receiver comprises based on the distance of detected field intensity determination receiver relative to the Plane of rotation of electromagnetic field.
Based on field intensity such as can determine qualitatively or quantitatively receiver to be positioned on Plane of rotation or under.To this, especially can be provided with coil as reflector, it surrounds certain angle with the plane launched by all the other coils.If namely receiver relative to Plane of rotation separately, then in the same position in Plane of rotation, (with the distance of reflector, the angle with reflector) distance greater or lesser with Plane of rotation can cause smaller or greater field intensity.As the tolerance to field intensity, such as, can use the amplitude of magnetic-field component.Alternatively or additionally, what be worth pursuit also can be based on the distance of field intensity determination receiver only on Plane of rotation.When reflector relative to ground, there is less distance and receiver therefore inevitable upwards relative to Plane of rotation separately time, this can be this situation.
In addition, the method can comprise this at least one electromagnetic field of modulation to communicate information to receiver place, and wherein, information comprises the element selected from following group: with reference to the clock information of phase, the identifying information of this at least one reflector.
The modulation technique selected from following group may be used: frequency modulation (FM), phase modulation (PM), " frequency shift keying " (FSK), " phase shift keying " (PSK), pulse-ampli tude modulation (PAM), pulse code modulation (PCM) at this.Usually, known in principle for those skilled in the art other technology is also possible.
Identifying information such as can comprise the information of the position about respective transmitter.This positional information such as can illustrate that corresponding reflector is positioned at where about motor vehicle, such as " right front " or " left side " or " right back " etc.Such as still or also conduct coding is by its parametrization for these positional informations of the explicit transmission of possibility, and this coding is such as associated by with position by the form such as stored in the receiver.
Usually likely for the electromagnetic field be issued that multiple electromagnetic field be issued is different, there is different modulation techniques and/or modulating frequency.But also may have the different modulating frequency of identical modulation technique in different em fields.Also identical modulation technique and modulating frequency may be selected for all em fields.The information transmitted can corresponding difference.
The em field of the such as each rotation of possibility is produced by multiple (such as three or four) em field (it is sent under the phase relation of regulation by each coil).These em fields producing the em field rotated can differently be modulated again, such as, to transmit different information.
According to the service condition of the method for the position for determining receiver, preferably certain modulation technique and/or modulating frequency, such as relative to the application for the location of personnel in building space, differently modulation technique can be selected in the application of the position for determining motor vehicle key.
Especially difference may be detected based on the clock information with reference to phase in addition.Such as, can detect relative to the difference with reference to phase.At this, according to form of implementation, clock information can have the different information contents: in a simple especially form of implementation, possibility clock information represents the only friendship zero (Nulldurchgang) (or integral multiple of 360 °) with reference to phase.But likely with reference to transmitting via clock information in time-resolved mode in the form of implementation that other are different.Can realize like this determining current phase place or reference phase in the part rotated of em field.Certainly also may in certain step such as with the delivered spaced of pi/2 or π/4 or π/8 etc. with reference to phase.
Identifying information such as can be used in the application of the certification comprising receiver.Such as, in the position of motor vehicle key is determined, the identifying information of this at least one motor vehicle can be compared with the identifying information of receiver, undelegated close to prevent.
Likely between the frequency and the attenuation rate of field intensity of em field, there is contact.Therefore different large scope (position can be realized wherein determine) may be realized according to the frequency of em field, such scope is determined by the field intensity (sensitive range) being greater than threshold value of em field, make especially in em field measurement signal to noise ratio enough large.In different frequency ranges, such as said frequencies scope, higher (lower) frequency can cause less (larger) attenuation rate of field intensity and therefore make larger (less) sensitive range become possibility.How following elaboration can enable this method determined for position utilize this understanding in current in different form of implementation.
According on the other hand, the present invention relates to a kind of method of the position close to the identification sensor controlled for determining motor vehicle, it is according to a further aspect in the invention according to for determining that the method for receiver position designs.
Such as, identification sensor can be the key of motor vehicle.Especially the modulation such as by electromagnetic field may be passed to the identifying information of identification sensor compared with the identifying information of identification sensor.This can be used for certification or close control.
Method for such position for determining identification sensor can obtain to for the similar effect of the obtainable effect of the method for the position determining receiver according to a further aspect in the invention.
According on the other hand, the present invention relates to a kind of navigation system for receiver, wherein, this navigation system comprises at least one reflector, it is set up to the electromagnetic field sent with time correlation respectively, and wherein, the amplitude of electromagnetic field rotates relative to reflector as the function of time.In addition, navigation system comprises receiver, and it is set up to measures this at least one and the electromagnetic field of time correlation.In addition, navigation system comprises computing unit, and it is set up to execution following steps: in the position of receiver based on record this at least one differ with the electromagnetic field of time correlation each detection for this at least one elect magnetic field; And the difference that at least one detects based on this determines the position of receiver.
Such as likely computing unit is arranged within receiver.But also may be arranged in outside receiver by computing unit.Also may perform the part in the step of computing unit in receiver, such as, detect difference, and other parts be in the external execution of receiver, such as, determine the position of receiver.Likely the function of computing unit computing unit in other words realizes as hardware or software or its combination and/or implements on different hardware cells.
According to the aspect discussed at present, navigation system can be set up to the method for the execution position for determining receiver according to a further aspect in the invention in addition.For such navigation system can obtain with for for the similar effect of the obtainable effect of the method for the position determining receiver according to a further aspect in the invention.
Another aspect of the present invention relates to a kind of motor vehicle, and it comprises the navigation system for receiver, wherein, this navigation system comprises at least one reflector, it is set up to the electromagnetic field sent with time correlation respectively, and wherein, the amplitude of electromagnetic field rotates relative to reflector as the function of time.In addition, the navigation system of motor vehicle comprises receiver, and it is set up to measures this at least one and the electromagnetic field of time correlation.In addition, the navigation system of motor vehicle comprises computing unit, and it is set up to execution following steps: record based on the position at receiver this at least one differ with each detection of electromagnetic field to this at least one elect magnetic field of time correlation; And the difference that at least one detects based on this determines the position of receiver.
The following illustrated feature of the characteristic sum of more than setting forth not only can be applied with corresponding combination of clearly setting forth, and with other combination or can apply individually, and does not leave protection scope of the present invention.Such as, the characteristic sum performance such as illustrated for em place can be transferred to the other em field with other frequency.The aspect of different navigation system also can be transferred in the aspect of motor vehicle.
Accompanying drawing explanation
Above-mentioned characteristic of the present invention, feature and advantage and the mode that how to realize it will be clearer and be easier to understand by the ensuing explanation of contact embodiment, elaborate these embodiments by reference to the accompanying drawings, wherein:
Fig. 1 shows the vertical view to the coil block for navigation system, and wherein, coil block has respectively with three coils of two coil windings;
Fig. 2 A shows the vertical view to such as coil block in FIG, and coil is relative to coil plane tipping wherein;
Fig. 2 B shows the end view of the coil block in Fig. 2 A;
Fig. 3 shows the electric current of the coil of the coil block by Fig. 1 as the function of time, and wherein, this electric current is produced by alternating voltage;
Fig. 4 shows profile diagram such as the grade (Isokonturplot) of the amplitude of the magnetic field component of the electromagnetic field produced by the coil block of Fig. 1 in certain moment;
Fig. 5 launches to show the rotation of the electromagnetic field of the coil block of Fig. 1 by means of the time of profile diagram of waiting of the amplitude of magnetic field component;
Fig. 6 shows the amplitude recorded with the magnetic component of the electromagnetic field of the rotation of transmitter point place Fig. 5 separately in Plane of rotation as the function of time;
Fig. 7 A shows for the phase relation of receiver relative to certain position of the rotary electromagnetic field produced by two coil blocks, and wherein, Fig. 7 A is the vertical view to the Plane of rotation that electromagnetic field rotates wherein;
Fig. 7 B is the end view of Fig. 7 A and shows the distance of receiver relative to the Plane of rotation of rotary electromagnetic field;
Fig. 8 A shows the circuit of the coil comprising two coil windings and two capacitors;
Fig. 8 B shows the attenuation rate for the different running method of the circuit of Fig. 8 A or the field intensity for different frequency electromagnetic field;
Fig. 8 C show schematically show alternate voltage source, and it is connected with the coil of coil block with vehicle electronic circuit;
Fig. 9 A shows the perspective view of the coil block of Fig. 1 in the housing;
Fig. 9 B shows the vertical view of the coil block to the housing with Fig. 9 A from above;
Fig. 9 C shows the view of the coil block to the housing with Fig. 9 A from below;
Fig. 9 D shows the perspective view of the coil block of Fig. 9 A, and wherein, coil block is fixed on circuit boards;
Fig. 9 E shows another perspective view of the coil block of Fig. 9 A, and wherein, coil block is fixing on circuit boards;
Fig. 9 F shows the end view of the coil block of Fig. 9 D and 9E;
Figure 10 A shows the perspective view of the coil block of Fig. 1 in the alternative form of implementation of housing;
Figure 10 B shows the vertical view of the coil block of the alternative form of implementation to the housing with Figure 10 A from above;
Figure 10 C shows the view of the coil block of the alternative form of implementation to the housing with Figure 10 A from below;
Figure 10 D shows the perspective view of the coil block of Fig. 1 of the alternative form of implementation with housing, and wherein, coil block is fixing on circuit boards;
Figure 10 E shows the end view of the coil block of Fig. 1 of the alternative form of implementation with housing, and wherein, coil block is fixing on circuit boards;
Figure 11 shows the vertical view of the integrated form of implementation on circuit boards to coil block, is constructed by conductor circuit at coil block coil;
Figure 12 shows the schematic diagram of the navigation system of the precognition of the identification sensor for motor vehicle;
Figure 13 shows the schematic diagram according to navigation system of the present invention of the identification sensor for motor vehicle;
Figure 14 shows the structural layout of the navigation system of Figure 13 in a motor vehicle; And
Figure 15 shows the flow chart of the method for the position for determining receiver.
Embodiment
Next the present invention is elaborated when reference accompanying drawing according to preferred form of implementation.In the accompanying drawings, identical Reference numeral represents same or analogous element.Set forth for the technology of locating or position is determined with reference to the accompanying drawings: in these are different, relate to the coil and coil block that allow to send rotary electromagnetic field, and comprise multiple in such coil block and there is the navigation system of the system configuration determined, and allow to the basic fundamental determining position according to rotating magnetic field.
Figure 1 illustrates comprising three coil 210a, the vertical view of the coil block of 210b, 210c.Coil 210a has two coil windings 212a, 212b.Coil 210b has two coil windings 212c, 212d.Coil 210c has two coil windings 212e, 212f.Coil windings 212a-212f is respectively around three arm 211a of ferromagnetic coil yoke 211, and one in 211b, 211c reels and can carry out electrical contact independently.Coil yoke such as can be made up of the alloy of iron, nickel, chromium, oxide or these materials.Arm 211a, 211b, 211c have circular cross section and are therefore cylindricalitys.It can have 3mm-30mm, the diameter of preferably 6mm.The shape of arm is variable.It radially extends from the center of coil block 200.Coil yoke is continuous print and does not therefore especially have large space or gap, therefore at these three coil 210a, can set up magnetic connection (the interactive form causing larger magnetic flux with ferromagnetic) between 210b, 210c.Different volume number of turns amounts can be selected according to the inductance expected (with the frequency of therefore electromagnetic field).
Magnetic flux can have different values at the difference place of coil block 200.These values can be specified by the version of coil block 200.Such as, null value can be presented at the center magnetic flux of coil block 200 or close to zero, that is present very little value.
As seen from Figure 1, coil 210a, 210b, 210c are all arranged in a plane.Show alternative form of implementation in Figures 2 A and 2 B, wherein, coil 210c is angle beta relative to this plane (coil plane) tipping.Thus, the little size of coil block 200 in coil plane can be realized.Such as, angle beta can in the scope of 20 °-30 °.
Again with reference to figure 1, coil 210a and coil 210b surrounds angle 213a.Coil 210b and coil 210c surrounds angle 213b.Coil 210c and coil 210a surrounds angle 213c.Angle 213a, 213b, 213c extend respectively within coil plane.In the form of implementation of Fig. 1, angle 213a, 213b, 213c have identical value, namely 120 °.In other words, the coil block 200 of Fig. 1 has the arrangement of star.Although show the form of implementation that symmetry is very high in FIG, but angle 213a that usually may be different, 213b, 213c have different values, when the version of coil block 200 is subject to a definite limitation due to structural limitations, this is worth expecting by it.Angle 213a, 213b, 213c are not limited especially and can have different values.Such as, angle 213a-213b-213c has following value respectively: 180 °-90 °-90 °; 200 °-80 °-80 °; 160 °-100 °-100 °.
As shown in Figures 2 A and 2 B, single coil 210c tipping from coil plane.Thus, the lateral dimension of coil block 200 can be reduced, the size that is within the coil plane launched by coil 210a, 210b.But, due to being also positioned within coil plane with the component of the electromagnetic field of time correlation of being produced by coil 210c, the coil block 200 of Fig. 2 A with 2B can be utilized to produce the electromagnetic field similar to the electromagnetic field of the coil block 200 of Fig. 1.
In Fig. 1,2A, 2B, respectively illustrate such situation, that is, coil block 200 comprises three coil 210a wherein, 210b, 210c, and usually may use multiple coil.Such as, can imagine such form of implementation, that is, wherein, coil block 200 has four (six) coils, and it surrounds the angle of 90 ° (60 °) respectively each other within coil plane.
The above Primary Reference architectural feature of coil block 200.Below explain, rotating electromagnetic (em) field may be produced by means of such coil block 200.This rotation em field is produced by the superposition of the em field of being launched by single coil.Rotate em field referred to here as such field, that is, wherein, the point of the homophase of em field rotates as the function coiling assembly 200 (such as its central point 201, is shown in Fig. 1) of time.
In order to produce em field, coil 210a-210c is handled as oscillation circuit together with capacitor (not shown in fig. 1-3).With reference to figure 3, first such form of implementation is discussed, wherein, all coils 210a of the coil block 200 of Fig. 1,210b, 210c are energized, that is to roll up circle 212a, 212b and 212c, the mode that 212d and 212e, 212f are combined.In figure 3, the function as the time illustrates by coil 210a, the electric current 85 of 210b, 210c.Such electric current realizes by corresponding alternating current.As can as seen from Figure 3, alternating voltage/electric current 85 has the difference of 120 °, namely corresponding to angle 213a, 213b, 213c.Alternating voltage 85 such as produces by current-voltage-inverter, and this inverter makes coil block 200 be connected with the 12V direct current network of motor vehicle.So, on alternating voltage 85 penetralia that can be applied to the arm be associated with corresponding coil 210a-210c and outermost contact.
Like this to coil 210a, the energising of 210b, 210c causes electromagnetic field 80, it is characterized in that the amplitude 81 of magnetic field component shown in Figure 4.Fig. 4 shows at moment t
1em field 80.Electromagnetic field has symmetry, and it is corresponding to the symmetry of coil block.The em field 80 illustrated especially within coil plane of Fig. 4.
It should be understood that and may the identical mode of other arrangement of coil block 200 be utilized to produce with drawing in the diagram by electromagnetic field 80, this arrangement be different from shown in Figure 1.Such as, if contiguous coil 210a, the angle 120 of angle 213a-213c and Fig. 1 of 210b, 210c is different, then correspondingly can mate alternating voltage 85, especially phase shift (see Fig. 3).Thus, contiguous angle 213a can be compensated, the change of 213b, 213c and can keeping as situation shown in Figure 4.When single coil 210 is also suitable for corresponding situation during tipping from coil plane as shown in Figure 2.The projection of corresponding coil 210c in coil plane may be considered at this.
Explain the rotation as the em field 80 of the function of time below with reference to Fig. 5, that is, explain the em field 80 rotated.At four not t in the same time
1, t
2, t
3, t
4show em field 80 (also seeing Fig. 3).In addition, bottom shows the phase 82 of the em field 80 of rotation in Figure 5.The increase (phase integral) along with applying the phase 82 increased can be found out.As can as seen from Figure 5, em field 80 coiling assembly 200 within coil plane rotates.Therefore, coil plane overlaps with Plane of rotation.Show such situation in Figure 5, that is, wherein, em field 80 has the constant amplitude of the function as angle/phase, and the amplitude of em field 80 81 (such as can according to the version of coil block 200) also has the correlation with phase.Three-phase alternating-current motor can be regarded as on picture, be similar to the operational mode for generation of the coil block 200 rotating em field 80.
Schematically illustrate the measurement of the amplitude 81 of the magnetic field component of the em field 80 at some P (also the seeing Fig. 5) place in the exocoel of coil block 200 and within Plane of rotation in figure 6.In addition show the amplitude 81 (dotted line illustrates) for a P' in figure 6, this P' have distance relative to Plane of rotation and its projection in Plane of rotation with put P and overlap.The difference of the amplitude 81 between P and P' is for the tolerance of a P' relative to the distance of Plane of rotation.Amplitude 81 is proportional with the field intensity of em field 80.As can be seen, amplitude sinusoid ground change (solid line).May determine relative to the difference 92 with reference to phase 90.Such as, the reference phase 90 of clock information 90 is had by modulation em field 80 transfer tape.
In order to modulate em field 80, can use modulation technique, it selects from following group: frequency modulation (FM), phase modulation (PM), " frequency shift keying " (FSK), " phase shift keying " (PSK), pulse-ampli tude modulation (PAM), pulse code modulation (PCM).Usually, other modulation technique known to those skilled in the art in principle is also feasible.Also may modulate by different coil 210a with different modulation skills in principle, 210b, 210c produce em field 80 different component and especially carry out frequency modulation.
Clock information 95 is especially also by modulating independently by different coil 210a, and the em field 80 that 210b, 210c send is transmitted.In other words, this means, can time-resolved mode being passed mutually of em field 80.So may determine difference 92 from a part for the turn over of em field 80, such as, (there is the angle 213a of 120 °, in the situation of the coil of 213b, 213c at 3) from 1/3 or 2/3 turn.
The position of receiver can be determined by the operation of single coil assembly 200.At this, position can represent different information depth: such as especially may determine the position in the azimuth in the Plane of rotation relative to coil block 200 from difference 92.But also by using two or more coil blocks, position can be determined more accurately according to different aspects, seeing Fig. 7 A.Mean at this more accurately, except azimuth, additionally or alternatively determine distance and/or polar angle.In different coordinate systems, differently can represent different coordinates.
Also may not be that (distance, azimuth, polar angle) determines position in spheric coordinate system, but determine position in other coordinate system any.This position especially can be determined in reference frame.Reference frame can be determined with reference to the position of (multiple) coil block 200 aptly, but such as can determine with reference to (multiple) coil block 200 motor vehicle be arranged on wherein.
In fig. 7, in the scope of corresponding navigation system, such as use two coil block 200a, 200b for determining receiver 30, the such as identification sensor position P as the key of motor vehicle.Receiver 30 is set up to measurement two coil block 200a, the rotation em field 80 of 200b.For this reason, receiver such as can have one or more receiver coil (not shown in fig. 7).In addition, receiver is set up to and detects difference 92 thus.As can be found out from Fig. 7 A, receiver 30 has the difference 91 different relative to the em field 80 of two coil block 200a, 200b.If determine two different differences 92 and known to coil block 200a, the distance between 200b, such as can by means of the exact position of triangulation determination receiver 30 within the Plane of rotation of em field 80.Position is by such as characterizing relative to the distance a of coil block 200a and direction A.
Larger precision may be realized: this is such as by realizing with under type, that is, adding as difference 92, also measures the field intensity of electromagnetic field 80 or the parameter proportional with it by receiver when determining the position P of receiver 30.By additionally measuring the amplitude of magnetic component of field intensity, such as electromagnetic field, can realize, determine the vertical range a' of receiver 30 relative to Plane of rotation.This in figure 7b (end view of Fig. 7 A) illustrated by vertical arrow.That is, if receiver 30 is located at the P' place, position on or below the Plane of rotation 300 of rotating magnetic field 80, then the position projection of receiver 30 in Plane of rotation 300 can be determined clearly according to difference 92 by triangulation described above.Afterwards, according to the vertical range of receiver 30 relative to Plane of rotation 300, the field intensity of em field 80 can greater or lesser (dotted line see in figure 6).
If except two coil block 200a, 200b also uses other coil block, then the unreliability in position is determined can be reduced, such as, the error of triangulation can be determined.Although below with reference to figure 7A and 7B at two coil block 200a, 200b aspect explains the technology of the position for determining receiver 30, it is to be understood however that, usually may use more than two coil block 200a, 200b.If such as use three, four or five coil blocks, then may reduce the error in the position of receiver 30 is determined.Multiple em field 80 can not be launched (time diversity) in the same time or launch (frequency diversity) with different frequency at least partly simultaneously in turn or in succession.Thus, receiver 30 can make the corresponding em field 80 recorded and coil block 200a, and one in 200b is associated.
Show the electric wiring of coil 210a in fig. 8 a.Especially, two coil windings 212a, 212b can be found out.These two coil windings 212a, 212b can run (also seeing Fig. 1) by contacting with x4 place at contact x1 with being linked.Capacitor 226 and two coil windings 212a, 212b connect.But also may only make coil windings 212a run.For this reason, another capacitor in parallel with coil windings 212a 225 is set.
Make coil windings 212a in the mode of connection, in the situation that 212b runs, the inductance of coil 210a is greater than the situation only making coil windings 212a run.Therefore, especially the resonance frequency for last described situation is less than for the resonance frequency of first described situation.Such as, when coil 210a utilizes two coil windings 212a, 212b to run, by the electric capacity selective resonance frequency like this designing inductance and capacitor 226 suitably, that is, it is 125kHz.Correspondingly, the resonance frequency for the operation only comprising the coil 210a of coil windings 212a and another capacitor 225 is chosen to 1MHz equally.Certainly can by design capacitance and inductance produce other frequency suitably.In addition, for any also known multiple technologies of art technology.
Usually, for capacitor 226 series circuit, launch em field time power consumption be compared to another capacitor 225 parallel circuits larger.In certain application, such as, for the receiver environment search in long-range scope.Irrotational em field such as can be comprised to the manipulation of the parallel circuits of another capacitor when preferably 1MHz.The feature of such situation is low electric power consumption, this such as in distance far away close to identify, that is for motor vehicle 1 until the coverage far away of 10m is very preferred.If identify identification sensor 30 in the distance that this is far away, capacitor 226 so can be utilized to activate series circuit.In this operational mode, can to determine in short range region, such as with motor vehicle 1 until in the scope of 3m the position of identification sensor 30 and position move towards.The classification of such type runs and can cause less energy ezpenditure, and this is especially be worth expecting in electric motor car.
In the frequency range comprising said frequencies, the attenuation rate of electromagnetic field 80 can with frequency dependence.Thus, higher frequency can cause the less attenuation rate of electromagnetic field 80.This illustrates in the fig. 8b.In the fig. 8b, the amplitude 81 of the magnetic component of such as electromagnetic field 80 is shown as the distance relative to the coil block 200 launched.Solid line (dotted line) shows the situation of the resonance frequency of relatively low (height) of corresponding oscillation circuit, as explained in above reference diagram 8A.As found out from Fig. 8 B, the attenuation rate for the electromagnetic field 80 of higher resonance frequency is lower.Therefore can by carrying out the position of receiver 30 in the remote zone 311 (short range region 310) of coil block 200 to only one (two) coil windings 212a (212a, 212b) energising.
The alternate voltage source 242 be connected with supply line 241 is schematically shown in 8C.Supply line 241 such as can be the 12V direct current network of motor vehicle.Alternate voltage source 241 is set up to the alternating voltage produced as shown in figure 3.In addition, in Fig. 8 C, computing unit 243 has been shown, it is set up to, by bus system 240 reception control signal and according to the transmitting of this control signal control em field 80.
The different views of the coil block 200 of Fig. 1 in housing 220 has been shown in Fig. 9 A-9F and 10A to 10D.Capacitor 225,226 and other power electric device also can be arranged within housing.Show electric contact 222, it makes coil block be connected with the conductor circuit on circuit board 230.Such as, contact is connected with alternate voltage source 242 by conductor circuit on circuit boards.In addition, be provided with support 221, coil block 200 position is fixed within housing 220 by regularly.Housing can provide the protection relative to vibration, deposit, moisture and preferably can be made of plastics.For observability reason, the upside of not shown housing 220, but can arrange on the upside of this.As can be found out from Fig. 9 A-9F and 10A-10D, the upper side and lower side and the circuit board 230 of housing are parallel to Plane of rotation 300 or coil plane.Special hull shape is not restrictive and can differently selects.It should be understood that according to operational version, recommend different housings 220.The mode that housing can be parallel to ground planar orientation is installed.
Figure 11 illustrates the alternative form of implementation of coil block 200.This form of implementation is corresponding to integrated version, and wherein, conductor circuit 231 forms the coil windings 212a of plane earth on circuit board 230,212c, 212e (dotted line).Such as, conductor circuit is made by etching or clad can or printing technology.
Arrange the recess 232 of circuit board 230, coil yoke 211 (not shown in fig. 11) is inserted and secured in this recess 232.This form of implementation can have the effect of especially little space requirement.
Explain the system configuration of navigation system 100 below according to Figure 12-14, it comprises at least two coil blocks 200,200a, 200b.By above with reference to the technology that figure 7A and 7B describes, navigation system 100 accurately can determine receiver 30, such as the position of the key of motor vehicle.Not only also can relatively accurately carry out position in the inside of motor vehicle in the outside of motor vehicle to determine, such as, until the precision of several centimetres.Such as, the position of the determination of key graphically for user illustrates, such as, on the screen of the car-mounted computer of motor vehicle 1.For this reason, rotation em field can be produced.
First illustrate known navigation system 100 in fig. 12.Controller 25 is connected with another controller 25a.Such as, controller 25 can be the part of the central computation unit of motor vehicle.In addition, controller 25 is connected with wave point 31, and it sets up the data transmission with identification sensor 30.Another controller 25A is connected with the door handle sensor 22 of motor vehicle by data circuit.The detectable motor vehicle of door handle sensor 22 can closing plate, such as door and bonnet manipulation or close to hope.In addition, another controller 25a is connected to generate an electromagnetic field with single coil 210 by supply line 241, and it can be identified transducer 30 and measure.As can as seen from Figure 12, the system configuration of above navigation system can be designed to relative complex.Especially, such as, must lay in the supply line 241 of a large amount of two cores, this needs the complicated wiring of motor vehicle: controller 25a comprises alternate voltage source, and it is coil 210 service voltage by circuit 241a.
Schematically show in fig. 13 according to navigation system 100 of the present invention.
Four coil block 200a-200d and capacitance sensor 20 and optical pickocff 21 are set.Coil block 200a-200d is connected with bus system 240 by computing unit (not shown in fig. 13), and bus system makes to become possibility with the data communication of controller 25.Bus system can be such as " controller local area network " (CAN) bus system, " Local Interconnect Network " (LIN) or " FlexRay " or other bus system.Controller 25 sends order by bus system 240, and this order is received and translation by the computing unit of corresponding coil block 200a-200d.So, coil block 200a-200d is set up to the em field 80 as producing rotation respectively to the reaction of control signal.For this reason required energy can be detected by supply line 241.Such as, supply line can provide direct voltage (such as 12V), thus corresponding electric switch circuit, i.e. alternate voltage source are set in coil block 200a-200d, to produce thus to produce the required alternating voltage with the phase relation of regulation.Such as, control unit 25 can so manipulate coil block 200a-200d, that is, corresponding em field 80 sends in the different time (time diversity) and/or with different frequencies (frequency diversity).Utilize with reference to the technology that figure 7A and 7B describes, the position of receiver 30 can be determined.Compared with the system of Figure 12, the navigation system 100 of Figure 13 has the reaction time faster, because eliminate the middle controller 25a connected.
Figure 14 shows the navigation system 100 with the assembly in motor vehicle 1.Can find out again from Figure 14, be undertaken controlling and Power supply by the circuit 240,241 be separated.In fig. 14, coil block 200a, 200b be arranged on right side with in the Qianmen in left side.Also may in coil block 200a, the 200b B post that is arranged on left side and right side and/or C post.Such as other coil block can be set Modularly in the region of motor vehicle rear.
Figure 15 illustrates the flow chart of the method for the position for determining receiver.Method starts with step S1.Such as, the activation trigger signal beginning through outside of method, such triggering signal such as can be the manipulation of door handle or close identification.First, in step s 2, the estimation of the position to receiver 30 is received.Such as, the estimation of the position of receiver 30 is by being reserved in optics in the door handle (also seeing Figure 13) of motor vehicle 1 and/or capacitance sensor 20,21 carries out.Therefore, the estimation of the position of receiver 30 such as can comprise information depth, such as: " receiver 30 is positioned at left front relative to motor vehicle 1 " or " receiver be positioned at motor vehicle 1 after ".
And then, in step s3, according to being selected to send the one or more coil blocks rotating em field 80 subsequently by the position estimated in step s 2.Such as, if known from step S2, receiver 30 is positioned at the left front of motor vehicle 1 as shown in Figure 14, then such as select coil block 200b and 200c, this is such situation, because for the topology (as described in above reference diagram 7A and 7B) based on difference, very little relative to coil block 200b due to the very little differential seat angle with receiver 30 by the infomation detection determining to carry out by means of the difference of coil block 200a.Alternatively such as also can run all three coil block 200a-200c or only coil block 200b etc.In step s 4 which, triggering signal is sent to a place in the coil block 200a-200c selected in step s3 by bus system.So, this current coil block launches rotary electromagnetic field 80.Rotary electromagnetic field 80 is so produced by corresponding coil block 200a-200c, that is, its by modulate not only comprise for cognitron motor-car 1 information and also comprise clock information 95.Such as, clock information can comprise with reference to phase, determines difference mutually relative to this reference.Also the difference relative to the outer triggering signal in step S1 may be determined.The transmitting of rotary electromagnetic field 80 can by means of the different coil 210a-210c alternating voltage 85 of multiple phase shift being applied to corresponding coil block 200a-200c superpose corresponding em field and realize.
Carry out the measurement of electromagnetic field 80 in step s 6.Therefore, step S5 and S6 such as can carry out simultaneously.The measurement of inductance that the time/frequency that measurement in step s 6 such as can comprise the amplitude 81 of magnetic field component is differentiated.Determine the difference 92 of measured electromagnetic field 80 in the step s 7.Such as, step S7 can the computing unit within receiver 30 carry out.But the information of the rotary electromagnetic field 80 recorded also in possibility step S6 is passed to control unit 25 place by wave point 31, thus can carry out step S7.Check in step s 8, the need of being sent by another coil block 200a-200c and measuring another electromagnetic field 80.If so, step S4 to S7 is re-started.Without road how, the position of receiver is determined in step s 9 based on the difference 92 determined.Step S9 such as can comprise and topologizes.Step S9 such as within controller 25 or computing unit in receiver 30 carries out.Ending method in step slo.
Although already been explained above use independently triggering signal in step s 4 which for manipulating the technology of different coil block 200a-200c, also only may carry out once and in the triggering signal once sent, contained all such information by step S4, that is, which coil block 200a-200c should generate an electromagnetic field 80.In such a case, the timer of activation trigger signal in corresponding coil block 200a-200c; This timer so designs, that is, different coil block 200a-200c is not launching electromagnetic field 80 in the same time.
In addition except time diversity described above, also may can perform the technology of frequency diversity and send different em fields 80 at least partly simultaneously.
In addition, be understood that, step S9 can represent the position P of receiver 30, the different accuracy of the determination of P': such as, may work as when only launching and measure a rotary electromagnetic field 80 (step S5 and S6), as just the position P determining receiver relative to the angle of corresponding coil block 200a-200c or direction A, P'.But, if use two or more rotary electromagnetic fields 80, the position P of receiver accurately can be determined within the Plane of rotation 300 of electromagnetic field 80, P'.This especially can comprise the distance a with coil block 200a-200c.Alternatively, the field intensity of rotary electromagnetic field 80 may be measured in step s 6, that is the amplitude 81 of the such as magnetic component of electromagnetic field 80, and the position P' releasing receiver 30 thus is in step s 9 shown in the dotted line in Fig. 6 relative to the distance a'(of Plane of rotation).Especially, such as can use such form of implementation of coil block 200, that is, wherein, single or multiple coil deflects relative to coil plane for this reason; Such as figure 2 illustrates such situation.The advantage that such scheme can have is, for having same distance relative to Plane of rotation but the different field intensity value of the position measurement of side disposed thereon or below (that is symmetrical relative to Plane of rotation mirror image).Can determine like this receiver 30 to be positioned on Plane of rotation or under.
Although be shown specifically by preferred form of implementation with reference to accompanying drawing and describe the present invention in detail; but the present invention is not subject to the restriction of disclosed example, and those skilled in the art can obtain other flexible program when not leaving protection scope of the present invention.Such as may the position that described abovely be applied in for the key of motor vehicle determine in technology for personnel location system.Typical applicable cases is such as locate the personnel and object that carry for assessment of the receiver of phase information.All wireless technologys, such as Bluetooth, wireless-LAN (WLAN), radio-frequency (RF) identification (RFID) and other technology all can be used for reflector.
In addition such as possibility navigation system 100 is for the different applicable cases determined based on accurate especially position.That is, such as can by accurately determining that the position of key 30 makes to become possibility by the motion identification controller motor-car 1 of key 30.The side-to-side movement of key 30 such as can cause the left rotation and right rotation of motor vehicle 1 thus.User can be positioned at outside motor vehicle 1 and Long-distance Control motor vehicle 1.
Claims (15)
1. the coil block (200,200a-200d) for generation of the electromagnetic field (80) rotated, wherein, described coil block (200,200a-200d) comprising:
-at least three coils (210a, 210b, 210c), it is respectively with the coil windings (212a-212f) belonging at least one,
-ferromagnetic coil yoke (211), it sets up magnetic connection of at least three described coils (210a, 210b, 210c).
2. coil block according to claim 1 (200,200a-200d), is characterized in that,
At least three described coils (210a, 210b, 210c) to be arranged in a coil plane and
Coil (210a, 210b, 210c) adjacent in described coil plane is arranged with the angle of about 120 ° (213a, 213b, 213c).
3. coil block according to claim 1 (200,200a-200d), is characterized in that,
At least three described coil (210a, 210b, tertiary coil (210c) 210c) with by least three described coil (210a, 210b, the coil plane that the first and second coils (210a, 210b) 210c) launch surrounds angle (β).
4. the coil block (200,200a-200d) according to any one of the claims, is characterized in that,
Ferromagnetic described coil yoke (211) is arranged within least three described coils (210a, 210b, 210c) continuously, and
Wherein, described coil block (200,200a-200d) comprises in addition:
-at least three capacitors (225), its respectively with at least three in described coil (210a, 210b, 210c) connects,
-housing (220), its electrical contact with outside (222) and machinery mount (221).
5. the coil block (200,200a-200d) according to any one of the claims, is characterized in that,
Ferromagnetic described coil yoke (211) has the arm (211a, 211b, 211c) radially extended from center (201), and
Each in the coil windings (212a-212f) of at least three described coils (210a, 210b, 210c) has the volume circle of the some around one of described arm (211a, 211b, 211c) respectively.
6. coil block according to any one of claim 1 to 4 (200,200a-200d), is characterized in that,
Each conductor circuit (231) being designed to the plane of enclosing at the upper structure volume of circuit board (230) in described coil windings (212a-212f),
Described circuit board (230) there is recess (232) for ferromagnetic described coil yoke (211) and
Ferromagnetic described coil yoke (211) to be arranged on described circuit board (230) and under.
7. the coil block (200,200a-200d) according to any one of the claims, is characterized in that,
Each coil (210a, 210b, 210c) exist respectively with two or more coil windings (212a-212f) of the volume circle of some, its can jointly or discretely be manipulated and
Described coil block (200,200a-200d) comprises in addition:
-at least three other capacitors (226), its respectively with each coil (210a, 210b, 210c) two or more described in a parallel connection in coil windings (212a-212f).
8. one kind for determining the navigation system (100) of the position (P, P') of the identification sensor (30) of motor vehicle (1), and described navigation system (100) comprising:
-at least two coil (210a, 210b, 210c), the different location place and being set up to that its position is fixedly fitted to described motor vehicle (1) runs respectively as the reflector for electromagnetic field (80), wherein, at least two described coil (210a, 210b, each and supply line (241) 210c) is linked
-with the identification sensor (30) of receiving coil, wherein, described identification sensor (30) is set up to and runs as the receiver at least two described electromagnetic fields (30),
-controller (25), it is set up to and manipulates at least two described coil (210as by bus system (240) with the order specified by computing unit (243), 210b, 210c) to produce corresponding electromagnetic field (80).
9. one kind for determining the navigation system (100) of the position (P, P') of the identification sensor (30) of motor vehicle (1), and described navigation system (100) comprising:
-at least two coil (210a according to any one of claim 1 to 7,210b, 210c), wherein, at least two described coils (200,200a-200d) position is fixedly fitted to the different location place of described motor vehicle (1) and the reflector be set up to respectively as the electromagnetic field (80) for rotating runs
-with the identification sensor (30) of receiving coil, wherein, the receiver that described identification sensor (30) is set up to as the described electromagnetic field (30) rotated at least two runs.
10. navigation system according to claim 9 (100), is characterized in that, described navigation system comprises in addition:
-controller (25), its order manipulation at least two described coil blocks (200,200a-200d) being set up to specify are to send the corresponding electromagnetic field (80) rotated.
11. navigation systems according to claim 10 (100), is characterized in that,
Described controller (25) is linked by bus system (240) and at least two described coil blocks (200,200a-200d),
Each and supply line (241) at least two described coil blocks (200,200a-200d) is linked, and
At least two described coil blocks (200, each 200a-200d) is set up to and receives the control signal of described controller by described bus system (240) and produce the electromagnetic field (80) rotated according to described control signal, wherein, the energy for sending the electromagnetic field (80) of rotation is obtained by described supply line (241).
12. navigation systems (100) according to claim 10 or 11, it is characterized in that, described controller (25) is set up to the electromagnetic field (80) at least two described coil blocks (200,200a-200d) being manipulated into and make it send corresponding rotation in turn.
13. navigation systems (100) according to any one of claim 9 to 12, it is characterized in that, described navigation system comprises in addition:
-at least one alternate voltage source (242), it is with at least two described coil blocks (200,200a-200d) be connected with supply line (241) and be set up to and supply each coil block (200 with alternating voltage (85) respectively to produce the corresponding electromagnetic field (80) rotated, at least two coil (210a 200a-200d), 210b, 210c), wherein, at least two described coil (210a, 210b, alternating voltage 210c) is in the phase relation of regulation each other
Wherein, the angle of mutually surrounding according to these adjacent coils (210a, 210b, 210c) in coil plane specifies the phase relation of adjacent coil (210a, 210b, 210c).
14. navigation systems (100) according to any one of claim 9 to 13, is characterized in that,
First Line coil assembly at least two described coil blocks (200,200a-200d) is arranged in the region of the B post in the left side of described motor vehicle (1),
The second coil block at least two described coil blocks (200,200a-200d) is arranged in the region of the B post on the right side of described motor vehicle (1),
Tertiary coil assembly at least two described coil blocks (200,200a-200d) is arranged in the region of the afterbody of described motor vehicle (1).
15. navigation systems (100) according to any one of claim 9 to 14, is characterized in that,
At least two described coil blocks (200,200a-200d) are arranged so that the Plane of rotation of at least two described electromagnetic fields (30) rotated is almost parallel each other, and/or
At least two described coil blocks (200,200a-200d) are arranged in the region of 70cm to 130cm on ground.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012017390.3 | 2012-09-01 | ||
| DE102012017390.3A DE102012017390A1 (en) | 2012-09-01 | 2012-09-01 | Coil arrangement for generating a rotating electromagnetic field and location system for determining a position of an identification transmitter |
| PCT/EP2013/067968 WO2014033246A1 (en) | 2012-09-01 | 2013-08-30 | Coil arrangement for generating a rotating electromagnetic field and positioning system for determining a position of an identification transmitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104756206A true CN104756206A (en) | 2015-07-01 |
| CN104756206B CN104756206B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380057633.XA Expired - Fee Related CN104756206B (en) | 2012-09-01 | 2013-08-30 | Coil arrangement for generating a rotating electromagnetic field and positioning system for determining a position of an identification transmitter |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US10115517B2 (en) |
| EP (1) | EP2891162B1 (en) |
| KR (1) | KR101657918B1 (en) |
| CN (1) | CN104756206B (en) |
| DE (1) | DE102012017390A1 (en) |
| WO (1) | WO2014033246A1 (en) |
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| CN108575042A (en) * | 2017-03-09 | 2018-09-25 | 北京北方华创微电子装备有限公司 | A kind of coil, medium cylinder and plasma chamber |
| CN110060855A (en) * | 2019-05-17 | 2019-07-26 | 中山展晖电子设备有限公司 | The fixed block of two-wire packet |
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| CN112865325A (en) * | 2021-01-29 | 2021-05-28 | 重庆大学 | Tripolar planar transmitting mechanism, transmission system thereof and current vector modulation method |
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| DE102015211420A1 (en) * | 2015-06-22 | 2016-12-22 | Continental Automotive Gmbh | Coil assembly, in particular for a vehicle access and / or vehicle start and / or key positioning system |
| DE102015213806A1 (en) | 2015-07-22 | 2017-01-26 | Volkswagen Aktiengesellschaft | Position determination with a magnetic field sensor for a vehicle |
| US10444256B2 (en) * | 2015-08-07 | 2019-10-15 | Structural Health Data Systems | Device and system for relative motion sensing |
| WO2018088198A1 (en) * | 2016-11-10 | 2018-05-17 | 株式会社デンソー | Vehicle system, portable machine, and vehicle-mounted device |
| JP6549640B2 (en) * | 2016-11-10 | 2019-07-24 | 株式会社Ｓｏｋｅｎ | Vehicle system, portable device, and in-vehicle device |
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| EP4024931A1 (en) * | 2021-01-05 | 2022-07-06 | Aptiv Technologies Limited | Position identification of an unlocking device |
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-
2012
- 2012-09-01 DE DE102012017390.3A patent/DE102012017390A1/en not_active Withdrawn
-
2013
- 2013-08-30 EP EP13753653.8A patent/EP2891162B1/en active Active
- 2013-08-30 CN CN201380057633.XA patent/CN104756206B/en not_active Expired - Fee Related
- 2013-08-30 KR KR1020157008418A patent/KR101657918B1/en active IP Right Grant
- 2013-08-30 WO PCT/EP2013/067968 patent/WO2014033246A1/en unknown
-
2015
- 2015-03-02 US US14/635,381 patent/US10115517B2/en active Active
-
2018
- 2018-09-28 US US16/145,922 patent/US20190035536A1/en not_active Abandoned
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108575042A (en) * | 2017-03-09 | 2018-09-25 | 北京北方华创微电子装备有限公司 | A kind of coil, medium cylinder and plasma chamber |
| CN108575042B (en) * | 2017-03-09 | 2021-04-09 | 北京北方华创微电子装备有限公司 | Coil, medium cylinder and plasma cavity |
| CN108365325A (en) * | 2017-12-28 | 2018-08-03 | 中国电子科技集团公司第二十研究所 | A kind of low frequency navigation miniaturization magnetic array |
| CN110581346A (en) * | 2018-06-08 | 2019-12-17 | 西万拓私人有限公司 | Antenna and device with antenna |
| CN110060855A (en) * | 2019-05-17 | 2019-07-26 | 中山展晖电子设备有限公司 | The fixed block of two-wire packet |
| CN110060855B (en) * | 2019-05-17 | 2021-03-16 | 中山展晖电子设备有限公司 | Fixed block of double-coil |
| CN112216958A (en) * | 2020-09-30 | 2021-01-12 | 维沃移动通信有限公司 | Electronic device |
| CN112216958B (en) * | 2020-09-30 | 2022-11-18 | 维沃移动通信有限公司 | Electronic device |
| CN112865325A (en) * | 2021-01-29 | 2021-05-28 | 重庆大学 | Tripolar planar transmitting mechanism, transmission system thereof and current vector modulation method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101657918B1 (en) | 2016-09-19 |
| CN104756206B (en) | 2017-02-22 |
| US10115517B2 (en) | 2018-10-30 |
| EP2891162A1 (en) | 2015-07-08 |
| EP2891162B1 (en) | 2019-10-09 |
| US20190035536A1 (en) | 2019-01-31 |
| DE102012017390A1 (en) | 2014-05-15 |
| KR20150052209A (en) | 2015-05-13 |
| US20150179332A1 (en) | 2015-06-25 |
| WO2014033246A1 (en) | 2014-03-06 |
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